Sidebar appears at bottom of homepage

I tried adding a copyright to my page. I tried adding it as a widget to the sidebar and it caused my entire sidebar to slide to the very bottom of my homepage. I removed it, but the items still appear at the bottom of the page even after removing each widget and re-adding them. Ideas?

This will correct the problem, but not by itself: after you check the option (and click Save Changes, of course), you need to edit the problem post (make any insignificant change such as adding then removing a space) and click Update.

@Panos, true, I had forgotten, that you would have to update the post for the change to take place. Thats helpful in the future, since this is a common subject in the forum to answer.
I'm just going to bookmark this thread, for the future.

Today, when I logged into my blog, the sidebar appeared in the bottom of my homepage. I'm not sure what caused it. I tried to do what you guys described here, but it didn't work. I thought the last post could be the problem, so I deleted it, but nothing.